Mikel Arteta made a tactical tweak which unleashed Bukayo Saka for Arsenal against West Ham United. Bukayo Saka scored twice as Arsenal battered West Ham United 6-0 at the London Stadium on Sunday afternoon. The 22-year-old was in scintillating form against the Hammers. In fact, in this match, Saka was even able to reach a personal milestone unmatched by any Arsenal player since 1978. The Hale End academy graduate tore the east London outfit apart, and might even have had more goals had his finishing been a little more precise in the first half. The winger is a talismanic figure for the Gunner…